Micro-audiphone



Nd. e2|,244. Patanted Mar. l4, I899.

u. w. HARMEYER.

IIORO-AUDIPHON E.

A umion filed m. as, 1896.)

(Io Modal.)

q 7' Cl Pym-:51 HWHARMEYERI my. A El WWW?) device is constructed.

UNITED STATES PATENT OFFICE.

HORACE \V. HARMEYER, OF CINCINNATI, OHIO, ASSIGNOR OE ONE-HALF TO ELMAS WV. MARRIOTT, OF CLEVELAND, OHIO.

MICRO-AUDIPHONE.

SPECIFICATION forming part of Letters Patent N 0. 621,24 dated March 14, 1899.

Application filed February 25, 1898. rial N 671J578I (N m -l To all whom it may concern.--

Be it known that I, HORACE W. HARMEYER, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Micro-Audiphones, of which the following, with the accompanying drawings, is a specification.

This invention relates to certain new and useful improve m en ts in m icroaudiphones,the object of the invention being to provide a device adapted to be introduced into the ear of a (leaf person and so constructed as to create an clectrica 1 current which is communicated to the drum of the ear and by the vibration of certain parts of the device impart such vibration to the ear-drum.

To this end the invention consistsin the peculiarconstruction, arrangement, and combinationv of the various parts, all as more fully hereinafter described, and pointed out in the claim.

In the accompanyingdrawings, which form a part of this specification, Figure 1 is a side elevation of my improved device complete and ready for use. Fig. 2 is a side elevation with the covering removed. Fig. 3 is a plan of the templet from which the frame of the Fig. 4 is a side elevation showing the device at about its full size, the other figures being greatly enlarged.

A represents the frame of my improved device. It is constructed of sheet-copper struck out into the form of the templet A, Fig. 3, the arms a I) being bent into rings with their ends soldered together, the two rings being connected together by the strip 0, the frame thus formed being slightly conical in shape.

B represents a zinc strip the ends of which are secured to the rings a Z) diametrically opposite to the strip 0.

O is a copper cap-plate secured to the smaller end of the frame A, and secured to this capplate are two fine strips D E, the former being copper and the latter zinc. The free ends of these strips project into the frame, as

shown in Fig. 2. These strips D E may be of any desired form, so long as they are sensitive to vibration under the action of soundwaves.

F represents a rubber cap or cover which slips over the device above described and is secured thereon by a gold screw Gr, which ongages with the cap-plate. This device is designed to be inserted in the auditory passage of the ear, the rubber covering preventing the metals from coming in contact with the walls of the passage. One of these devices should be inserted in each ear.

The physical body of mankind attracts and has more or less of an electrical force and with these devices in place will generate quite a strong current of electricity, vibrate the fine strips D E, and convey sound to the natural ear-drum,thus creating what may be called a massage treatment upon the eardrum, the effect being to make the deafest person hear in a very short time and in some cases immediately. After a time the natural drum will have been restored to its sensitive- 7o ness under the sound-waves and a further use of the device may be dispensed with.

What I claim as my invention is As a newarticle of manufacture, a microaudiphone consisting of the frame A, formed of thin metal, a zinc strip B, having its ends secured to the end rings of the frame A, a copper plate O, secured to the smaller end of the frame A, said plate 0 being provided with the metal strips D, E, the whole being inclosed in cap or cover F, the parts being convstructed, arranged and operating substantially in the manner and for the purpose set forth.

In testimony whereof I aiiix my signature,

in presence of two witnesses, this 21st day of \Vitnesses:

. Jos. PFEIFFER,

BARRY DUDLEY. 

